Sewing-machine guide.



(i. E. MOLYNEUX.

SEWING MACHINE GUIDE.

APPLICATION FILED IULY19= i915.

1,%%5, 15%, Patented May 8,1917.

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GEORGE E. MOLYNEUX, OF BAYONNE, NEW JERSEY, ASSIGNOR TO THE SINGER.MANUFACTURING COMPANY, A CORPORATION OF NEW J'ERSEY.

SEWING-MACHINE GUIDE.

Application filed July 19, 1915.

To all whom it may concern:

Be it known that I, GEORGE E. .MOLYNEUX, a citizen of the United States,residing at Bayonne, in the county of Hudson and State of New Jersey,have invented certain new and useful Improvements in Sewing-MachineGuides, of which the following is a specification, reference being hadtherein to the accompanying drawings.

This invention relates to improvements in sewing machine guides and hasfor its object to provide a guide device especially adapted formechanically abutting the edges of cut knit goods pieces preparatory tothe uniting of said abutted edges by the stitch-forming mechanism of themachine.

The improvements comprise a combined presserand guide-foot which coactswith'a guide-block adjustably secured upon the throatplate of themachine. The presserfoot is of increased thickness at its forward orreceiving end and is cut away to form two reversely inclined andconverging guidewalls, each wall gradually decreasing in height towardits delivery end, the whole forming a substantially V-shaped structure.The guide-block is beveled on its upper face and it is formed with aprojecting nose shaped to correspond with the walls of the foot. Theguiding surfaces thus described act upon two opposite margins of thefabric piece or pieces to turn them upwardly from the horizontal planeof the body fabric, until the said margins meet in substantiallyinverted V-shaped formation; and as the fabric is passed through theguide by the action of the sewing machine feed, the walls of the guideserve to gradually decrease the height of the inverted V-shapedformation of the margins until a point is reached where they are ironedflat, and their edges crowded together by the lower face of the foot.

The details of the improvements will be readily understood by referenceto the accompanying drawings, in which Figure 1 is a perspective view ofthe improvements applied to a sewing machine, illustrating the manner inwhich the fabric is presented to the guiding elements. Fig. 2 is aperspective view from the under. faces of the foot and block and Fig. 3is a sectional side elevation of the improvements in connection with thefeeding elements of a sewing machine. Fig. 4 is a cross section of theguide Specification of Letters Patent.

Patented May 8, 1917.

Serial No. 40,566.

elements on the line 4:ff, Fig. 3 and Fig. 5) is a cross section of theguide elements on the line 55, Fig. 3.

The improvements are shown in conjunction with the tubularwork-supporting arm A of a sewing machine employing four needles 7?. anda single looper Z, the latter being mounted upon the rock-shaft 1extending lengthwise of the arm A and overlying an endwise movable shaft2 connected to the looper-carrier 3 for imparting the. sidewisemovements to the looper. The feed-bar 6 of the machine carries thefeeddogs 7 and S and the auxiliary presser-bar 9 carries at its lowerend the shank 10 of the combined presser and guide-foot which coactswith the guideblock 12 in guiding the two fabric edges into horizontalabutment.

The presser-foot, pivotally connected to its shank by means of the pin13, is of increased thickness at its forward or receiving end, and iscut away to form two converging guide-walls w, each guide-wall beingflared outwardly from a line longitudinally and centrally of the footand being beveled toward the plane of the throat-plate 17 to form asubstantially V-shaped structure both in plan and in cross-section.

The guide-block 12 is formed with a slot 14, surrounded by a shoulder15, to receive and provide a seat for the head of a setscrew 16 adaptedto hold the block in adjusted position upon the throat-plate 17 of themachine. The guide-block is held against turning by a depending pin 18fitted Within a slot 19 in the throat-plate. The up per face of theguide-block is beveled, and is provided with a projecting nose shaped tocorrespond with the converging walls of the foot and recessed in itsunder surface to clear the feed-dog. By moving the block toward or fromthe guide-foot, the spacing between these two members is adjusted toaccommodate the exact thickness of the fabric to be acted upon, so thatno excess spacing will permit the margins to curl and the edges will becompelled to crowd together without overlapping.

The walls of the guide members hold the margins of the fabric insubstantially inverted V-shape formation, as shown in Figs. 4 and 5. Asthe fabric is passed through the guide by the action of the feed, theguiding walls serve to gradually decrease the degree of the invertedV-shape formation of the margins until a point is reached where they areironed flat and the edges crowded together by the lower face of thefoot.

By means of the above described improvement, the edges of cut knit-goodspieces may be presented to the stitch-forming mechanism of a sewingmachine in abutment without overlapping, so as to render unnecessary theuse of a trimmer preliminary to the stitching operation. It will beunderstood that various changes may be made in the construction andarrangement of the elements above described without departing from thespirit of the invention. For example the guiding element which [coactswith the guide-block 12 may be formed separately from the presser-footof the machine, also the guiding elements may be inverted, if desiredwithout affecting the mode of operation thereof.

Having thus set forth the nature of the invention, What I claim hereinis 1. In a sewing machine guide, means for guiding the edges of fabricinto abutment preliminary to a stitching operation, comprising guidingwalls adapted to receive and turn two margins of fabric intosubstantially V-shape formation and gradually to decrease the degree ofsuch formation.

2. In a sewing machine guide, means for guiding the edges of fabric intoabutment preliminary to a stitching operation, comprising two separableguiding members coacting to turn two margins of fabric intosubstantially V-shape formation and subsequently to decrease the degreeof such formation to a point where the said margins are flattened intosubstantially the same plane.

3. In sewing machine guides, a guide-foot formed with a V-shape channelin its lower face, and a guide-block coacting with said foot, the saidblock having an upper face the reverse in contour to the lower face ofthe foot and being adjustable relatively thereto.

4. In sewing machine guides, a guide-foot formed with a V-shape channelin its lower face, and a guide-block coacting with said foot, the saidblock having an upper face the reverse in contour to the lower face ofthe foot and having a portion of its base cut away.

5. In a device for guiding the edges of fabrics into abutting relationand in a compact condition, an upper member having outwardly divergingand downwardly and laterally beveled walls, a lower member having aprojecting nose spaced from the walls of the upper member and definingtherewith a fabricpassage, said passage being inclined downwardly.

6. A presser-foot, downwardly and rearwardly beveled and convergingwalls defining a V-shaped recess therein, in combination with a matingmember having a tapering and beveled end spaced from said foot to form aV-shaped fabric passage therewith and of diminishing dimensions towardthe rear of said presser-foot.

7. In combination, a feed-dog, a presserfoot cooperating therewith andmeans arranged between the edges of said feed-dog and including wallsdefining a V-shaped and downwardly inclined fabric'passage for bringingthe edges of goods into abutting relation in a compact condition forstitching, said feed-dog engaging the fabrics before they merge into theplane of the Worksupport.

8. In combination, a presser-foot, a feeddog having outer membersarranged adjacent the edges of said pressenfoot, said foot and doghaving cooperative work-engaging surfaces, said presser-foot having aV-shaped recess inits front portion, and a beveled and taperingprojection extending between the ranges of movement of the outer membersof the feed-dog whereby as two pieces of material are fed their edgesare arranged in abutting relation and crowded together.

9. In a device for guiding the edges of fabric into abutting relationand in a compact condition, two members having spaced walls defining afabric passage of an inverted V-shape in cross section and downwardlyinclined to the horizontal.

In testimony whereof, I have signed my name to this specification.

GEORGE E. MOLYNEUX.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

